Respuesta :

bekkarmahdi702

Answer:

Step-by-step explanation:

  1. 560 miles/h ⇒ 1680/3
  2. t = 7h ⇒378/54
  3. 4 ft/s⇒ 164/41
  4. t= 40 s ⇒ 1000/25
  5. P= 14*2+15*2 = 58 cm  A= 14*15= 210 cm²
  6. P= 22*4 = 88 yd   A= 22²= 484 yd²
  7. P= 2*61+2*54= 230 miles  A= 61*54 = 3294 miles²
  8. P= 4*48= 192 mm A= 48²= 2304 mm²